Answer:
B. Price Decreases & Quantity Increases
Step-by-step explanation:
Since natural gas provides heat at a much lower cost, most households will begin to use natural gas and stop buying heating oil because natural gas can serve as a substitute to heating oil at a lower cost. This will result in decrease in price of the heating oil to encourage households to buy, and since more households prefer to go for natural gas, the quantity of the heating oil will increase.